What is 11.53 percent of 640 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 640 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 640 is 100%, so we can write it down as 640=100%.
4. We know, that x is 11.53% of the output value, so we can write it down as x=11.53%.
5. Now we have two simple equations:
1) 640=100%
2) x=11.53%
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
640/x=100%/11.53%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 11.53% of 640

640/x=100/11.53
(640/x)*x=(100/11.53)*x       - we multiply both sides of the equation by x
640=8.6730268863833*x       - we divide both sides of the equation by (8.6730268863833) to get x
640/8.6730268863833=x
73.792=x
x=73.792

now we have:
11.53% of 640=73.792